CVE-2026-111217

Estado: AnalizadaAlta (8.6)—

Gravedad8.6Alta · CVSS 4.0

Probabilidad de explotación7.05 %mayor que el 94 % de las CVE

Explotación activaNono figura en el catálogo de CISA

Exploit públicoNo conocidosin código público localizado

Netgate pfSense CE hasta la versión 2.9.0 incluida contiene una vulnerabilidad de inyección de comandos del sistema operativo que permite a usuarios autenticados con privilegios de edición de IP virtual ejecutar comandos como root mediante el almacenamiento de un VHID de CARP sin validar. Los atacantes pueden proporcionar un VHID que contenga metacaracteres de shell, que se ejecutan a través de las llamadas a ifconfig de interface_ipalias_configure() o de get_carp_interface_status() cuando se muestra el estado de CARP.

Traducción automática del texto original de NVD (en inglés).

CVSS

Puntuación base: 8.6
Versión: 4.0
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 7.05 %
Percentil entre todas las CVEs puntuadas: 94
Fecha de la puntuación: 20/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement85 %
Impacto principalT1059 Command and Scripting Interpreterexecution90 %
Impacto secundarioT1068 Exploitation for Privilege Escalationprivilege escalation60 %

Vector AV:N con PR:H (red con privilegios) y CWE-78: usuarios autenticados ejecutan comandos como root al inyectar metacaracteres en un VHID CARP sin validar.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

Mitigaciones ATT&CK que cubren estas técnicas

Threat Intelligence Program Privileged Account Management Execution Prevention Disable or Remove Feature or Program Application Isolation and Sandboxing Exploit Protection

Tecnologías afectadas (1)

Pfsense — Pfsense

CWE

CWE-78

Referencias

Mostrar las 7 referencias

JSON original (NVD)

Mostrar

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  "id": "CVE-2026-111217",
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          "modifiedSubIntegrityImpact": "NOT_DEFINED",
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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    },
    {
      "url": "https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/interfaces.inc#L3236-L3238",
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    },
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      "tags": [
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      ],
      "source": "disclosure@vulncheck.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
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          "value": "CWE-78"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Netgate pfSense CE through 2.9.0 contains an OS command injection vulnerability that allows authenticated users with Virtual IP edit privileges to execute commands as root by storing an unvalidated CARP VHID. Attackers can supply a VHID containing shell metacharacters that executes via interface_ipalias_configure() ifconfig calls or get_carp_interface_status() when CARP status is rendered."
    }
  ],
  "lastModified": "2026-10-20T15:38:40.363",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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}